Thank you all for the great replies. I think I will put in the dryer on air with a clean damp towel and see what happens (and hope for the best). Then I'll use it in a quilt and wash later.
I have never used a message board before, and this was just a great way to get help. Thank you again! You made my day! quilter Pat

I've had great results washing batting inside of a pillowcase. If I remember right, I laid it out in the sun until it was almost dry, then tossed it in the dryer for a few minutes to fluff it up.

Quilt pat, welcome to the board and it sounds like you have been given great advice!!!

I think the dryer would get most of the dust on. Air